<div mat-dialog-content>
  <p class="mat-primary">您即将进入 {{data.title}} 网站</p>
</div>
<div mat-dialog-actions>
  <button mat-button (click)="onNoClick()" >取消</button>
  <button mat-button (click)="onClick()" class="mat-primary"  cdkFocusInitial>确定</button>
</div>